CN212850495U - Double-antenna communication signal processing system, communication device and aircraft - Google Patents
Double-antenna communication signal processing system, communication device and aircraft Download PDFInfo
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- CN212850495U CN212850495U CN202022162089.5U CN202022162089U CN212850495U CN 212850495 U CN212850495 U CN 212850495U CN 202022162089 U CN202022162089 U CN 202022162089U CN 212850495 U CN212850495 U CN 212850495U
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Abstract
The utility model discloses a two antenna communication signal processing system, communication device and aircraft, this signal processing system includes: the first antenna unit and the second antenna unit are fixedly oriented to different directions; the dual-channel signal receiving module is used for acquiring a first preset frequency band communication signal received by the first antenna unit and the second antenna unit, and filtering, frequency converting and demodulating the first preset frequency band communication signal; the dual-channel signal transmitting module is used for modulating, frequency-converting and filtering data to be transmitted and transmitting the obtained second preset frequency band communication signal to the first antenna unit or the second antenna unit; and the signal processing control unit is used for providing control signals for the dual-channel signal receiving module and the dual-channel signal transmitting module, receiving the first preset frequency band communication signals and transmitting data to be transmitted to the dual-channel signal transmitting module. The utility model discloses a binary channels transceiver module that biantenna and correspond improves communication quality.
Description
Technical Field
The utility model relates to an aircraft communication technology field especially relates to a two antenna communication signal processing system, communication device and aircraft.
Background
The Near space (Near space) is an airspace 20-100 kilometers away from the ground, is located in key areas above a typhoon, a rainstorm and other disastrous weather systems, and has great development potential in the Near space area by adopting an aircraft to carry out targeted target observation on meteorological indexes along with the development of communication technology and space flight technology.
At present, an aircraft for meteorological monitoring field adopts big dipper short message communication usually, but, current aircraft adopts single antenna to carry out communication signal receiving and dispatching usually, when closing on space execution flight monitoring task, if the aircraft gesture changes, then produces signal receiving and dispatching blind area easily, leads to signal receiving and dispatching untimely, incomplete, and communication stability is relatively poor, influences meteorological observation effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two antenna communication signal processing system has solved the poor problem of current aircraft communication system communication stability, improves the high dynamic adaptability of system.
In a first aspect, an embodiment of the present invention provides a dual-antenna communication signal processing system, including: the antenna comprises a first antenna unit, a second antenna unit, a dual-channel signal receiving module, a dual-channel signal sending module and a signal processing control unit, wherein the first antenna unit and the second antenna unit are fixedly oriented to different directions; the dual-channel signal receiving module is used for receiving a first preset frequency band communication signal captured by the first antenna unit and the second antenna unit, and filtering, frequency converting and demodulating the first preset frequency band communication signal; the dual-channel signal transmitting module is used for modulating, frequency-converting and filtering data to be transmitted to obtain a second preset frequency band communication signal and transmitting the second preset frequency band communication signal to the first antenna unit or the second antenna unit; the signal processing control unit is used for providing control signals for the dual-channel signal receiving module and the dual-channel signal sending module, receiving a first preset frequency band communication signal and sending data to be sent to the dual-channel signal sending module.
Optionally, the dual-channel signal receiving module includes a first signal receiving module and a second signal receiving module, the first signal receiving module includes a first filtering unit for implementing signal filtering, a first down-conversion unit for implementing signal down-conversion processing, a first analog-to-digital conversion unit for converting an analog signal into a digital signal, a first demodulation unit for implementing signal demodulation, and a first information caching unit for caching a first preset frequency band communication signal, which are connected in sequence, and the first preset frequency band communication signal is gradually transmitted to the first information caching unit by the first filtering unit; the second signal receiving module comprises a second filtering unit for realizing signal filtering, a second down-conversion unit for realizing down-conversion processing of signals, a second analog-to-digital conversion unit for converting analog signals into digital signals, a second demodulation unit for realizing signal demodulation and a second information cache unit for caching first preset frequency band communication signals, which are sequentially connected, and the first preset frequency band communication signals are gradually conveyed to the second information cache unit by the second filtering unit along the second signal receiving module.
Optionally, the first down-conversion unit includes two stages of down-converters connected in series, and performs down-conversion on the first preset frequency band communication signal twice to generate a preset intermediate frequency signal; the second down-conversion unit comprises two stages of down-converters connected in series, and down-conversion is performed on the first preset frequency band communication signal twice to generate a preset intermediate frequency signal.
Optionally, the first analog-to-digital conversion unit and the second analog-to-digital conversion unit adopt analog-to-digital converters with 4 bits of quantization bits.
Optionally, the dual-channel signal sending module includes a first signal sending module and a second signal sending module, the first signal sending module includes a third filtering unit for implementing signal filtering, a first up-conversion unit for implementing signal up-conversion processing, a first digital-to-analog conversion unit for converting a digital signal into an analog signal, a first modulation unit for implementing signal modulation, and a third information caching unit for caching a second preset frequency band communication signal, which are connected in sequence, and data to be sent is gradually transmitted to the third filtering unit by the third information caching unit; the second signal transmitting module comprises a fourth filtering unit for realizing signal filtering, a second up-conversion unit for realizing signal up-conversion processing, a second digital-to-analog conversion unit for converting digital signals into analog signals, a second modulation unit for realizing signal modulation and a fourth information cache unit for caching second preset frequency band communication signals, which are connected in sequence, and data to be transmitted are gradually transmitted to the fourth filtering unit by the fourth information cache unit.
Optionally, the first antenna unit is fixed to face a first direction, the second antenna unit is fixed to face a second direction, and the first direction and the second direction form an included angle of 90 degrees.
Optionally, the signal processing control unit is provided with a high-stability crystal oscillator, and the high-stability crystal oscillator is configured to provide a clock signal to the dual-channel signal receiving module and the dual-channel signal sending module.
Optionally, the first antenna unit includes an S-band sub-antenna unit and an L-band sub-antenna unit, the second antenna unit includes an S-band sub-antenna unit and an L-band sub-antenna unit, the S-band sub-antenna unit is configured to receive the first preset-band communication signal, and the L-band sub-antenna unit is configured to transmit the second preset-band communication signal.
In a second aspect, the embodiment of the present invention further provides a communication device, which includes the above dual-antenna communication signal processing system.
In a third aspect, the embodiment of the present invention further provides an aircraft, including the above dual-antenna communication signal processing system.
The aircraft provided by the embodiment of the utility model is provided with a dual-antenna communication signal processing system, which is provided with a first antenna unit, a second antenna unit, a dual-channel signal receiving module, a dual-channel signal transmitting module and a signal processing control unit, wherein the first antenna unit and the second antenna unit which are fixed towards different directions are used for capturing a first preset frequency band communication signal, the signal processing control unit is used for controlling the dual-channel signal receiving module to filter, frequency convert and demodulate the first preset frequency band communication signal and controlling the dual-channel signal transmitting module to modulate, frequency convert and filter the data to be transmitted to obtain a second preset frequency band communication signal, and the first antenna unit or the second antenna unit is used for transmitting the second preset frequency band communication signal, the antenna units towards different directions are used for capturing satellite signals and transmitting the data to be transmitted, the problem of current aircraft communication system communication stability poor is solved, be favorable to improving the high dynamic adaptability of system, improve communication quality.
Drawings
Fig. 1 is a schematic structural diagram of a dual-antenna communication signal processing system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of another dual-antenna communication signal processing system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a communication device according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an aircraft provided by a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is the embodiment of the present invention provides a structural schematic diagram of a dual-antenna communication signal processing system, and this embodiment is applicable to an application scenario in which an aircraft adopts a dual-antenna structure to perform near space communication signal transceiving.
Referring to fig. 1 in combination, the dual-antenna communication signal processing system 1 includes: the antenna comprises a first antenna unit 101, a second antenna unit 102, a dual-channel signal receiving module 20, a dual-channel signal sending module 30 and a signal processing control unit 40, wherein the first antenna unit 101 and the second antenna unit 102 are fixed to face different directions; the dual-channel signal receiving module 20 is configured to receive a first preset frequency band communication signal captured by the first antenna unit 101 and the second antenna unit 102, and perform filtering, frequency conversion and demodulation processing on the first preset frequency band communication signal; the dual-channel signal transmitting module 30 is configured to modulate, frequency convert, and filter data to be transmitted to obtain a second preset frequency band communication signal, and transmit the second preset frequency band communication signal to the first antenna unit 101 or the second antenna unit 102; the signal processing control unit 40 is configured to provide a control signal to the dual-channel signal receiving module 20 and the dual-channel signal transmitting module 30, receive a first preset frequency band communication signal, and transmit data to be transmitted to the dual-channel signal transmitting module 30.
Specifically, in the communication signal receiving process, the first antenna unit 101 and the second antenna unit 102 capture a first preset frequency band communication signal around in real time, the signal processing control unit 40 outputs a receiving end control pulse, controls the dual-channel signal receiving module 20 to perform filtering, frequency conversion and demodulation processing on the first preset frequency band communication signal captured by the first antenna unit 101 and the second antenna unit 102, and sends the processed communication signal to the signal processing control unit 40, so as to realize forwarding of the receiving end communication signal; in the process of transmitting the communication signal, the signal processing control unit 40 sends data to be sent to the dual-channel signal sending module 30, outputs a sending end control pulse, controls the dual-channel signal sending module 30 to perform modulation, frequency conversion and filtering on the data to be sent, obtains a second preset frequency band communication signal, and sends the second preset frequency band communication signal to a corresponding communication satellite through the first antenna unit 101 or the second antenna unit 102, so as to transmit the sending end communication signal.
Optionally, the first antenna unit 101 is fixed to face the first direction, the second antenna unit 102 is fixed to face the second direction, and the first direction and the second direction form an included angle of 90 degrees, so that the aircraft can fly at any attitude, the transceiving function of the communication signal can be completed, and the high dynamic adaptability of the system can be improved.
Optionally, the first antenna unit 101 includes an S-band sub-antenna unit and an L-band sub-antenna unit, and the second antenna unit 102 includes an S-band sub-antenna unit and an L-band sub-antenna unit, where the S-band sub-antenna unit is configured to receive a first preset frequency band communication signal, and the L-band sub-antenna unit is configured to transmit a second preset frequency band communication signal.
In this embodiment, the first antenna unit 101 and the second antenna unit 102 are designed as the same integrated structure, and typically, the first antenna unit 101 and the second antenna unit 102 may be implemented as microstrip antenna structures. The first antenna unit 101 and the second antenna unit 102 are configured to receive first preset frequency band communication signals transmitted by communication satellites in different directions, and transmit second preset frequency band communication signals to corresponding communication satellites, where the first preset frequency band communication signals may typically be S-band beidou short message radio frequency signals, and the second preset frequency band communication signals may typically be L-band beidou short message radio frequency signals.
Therefore, the dual-antenna communication signal processing system provided by the embodiment of the present invention is provided with a first antenna unit 101, a second antenna unit 102, a dual-channel signal receiving module 20, a dual-channel signal transmitting module 30 and a signal processing control unit 40, wherein the first antenna unit 101 and the second antenna unit 102 fixed to face different directions are used to capture a first preset frequency band communication signal, the signal processing control unit 40 is used to control the dual-channel signal receiving module 20 to filter, frequency convert and demodulate the first preset frequency band communication signal, and control the dual-channel signal transmitting module 30 to modulate, frequency convert and filter the data to be transmitted, so as to obtain a second preset frequency band communication signal, and transmit a second preset frequency band communication signal to the first antenna unit 101 or the second antenna unit 102, so as to capture a satellite signal and transmit the data to be transmitted through the antenna units facing different directions, the problem of current aircraft communication system communication stability poor is solved, be favorable to improving the high dynamic adaptability of system, improve communication quality and stability.
Alternatively, a preamplifier may be disposed between the antenna unit and the dual-channel signal receiving module 20 to perform pre-amplification on the receiving-end communication signal captured by the antenna unit, and a final-stage power amplifier may be disposed between the antenna unit and the dual-channel signal transmitting module 30 to perform power amplification on the transmitting-end communication signal output by the dual-channel signal transmitting module 30.
Fig. 2 is a schematic structural diagram of another dual-antenna communication signal processing system according to an embodiment of the present invention.
Optionally, referring to fig. 2 in combination, the dual-channel signal receiving module 20 includes a first signal receiving module 210 and a second signal receiving module 220, where the first signal receiving module 210 includes a first filtering unit 211 for implementing signal filtering, a first down-conversion unit 212 for implementing signal down-conversion processing, a first analog-to-digital conversion unit 213 for converting an analog signal into a digital signal, a first demodulation unit 214 for implementing signal demodulation, and a first information buffer unit 215 for buffering a first preset frequency band communication signal, which is sequentially connected, and the first preset frequency band communication signal is gradually transmitted to the first information buffer unit 215 by the first filtering unit 211; the second signal receiving module 220 includes a second filtering unit 221 for implementing signal filtering, a second down-conversion unit 222 for implementing signal down-conversion processing, a second analog-to-digital conversion unit 223 for converting an analog signal into a digital signal, a second demodulation unit 224 for implementing signal demodulation, and a second information buffer unit 225 for buffering a first preset frequency band communication signal, which are sequentially connected, and the first preset frequency band communication signal is gradually transmitted to the second information buffer unit 225 along the second signal receiving module 220 by the second filtering unit 221.
In this embodiment, the first signal receiving module 210 is configured to perform filtering, frequency conversion and demodulation processing on a first preset frequency band communication signal received by the first antenna unit 101, the second signal receiving module 220 is configured to perform filtering, frequency conversion and demodulation processing on a first preset frequency band communication signal received by the second antenna unit 102, and the first signal receiving module 210 and the second signal receiving module 220 may adopt the same circuit structure, which is not limited thereto.
In this embodiment, the first filtering unit 211 and the second filtering unit 221 are configured to perform filtering processing on the communication signal of the first preset frequency band after the pre-amplification processing, and typically, the first filtering unit 211 and the second filtering unit 221 may employ a dielectric filter, which is beneficial to reducing noise influence and improving communication quality.
In this embodiment, the first down-conversion unit 212 and the second down-conversion unit 222 are configured to perform down-conversion processing on the filtered first predetermined frequency band communication signal, and convert the first predetermined frequency band communication signal into a third predetermined frequency band intermediate frequency signal according to a predetermined communication standard protocol.
Optionally, the first down-conversion unit 212 includes two stages of down-converters connected in series, and performs down-conversion on the first preset frequency band communication signal twice to generate a preset intermediate frequency signal; the second down-conversion unit 222 includes two stages of down-converters connected in series, and performs down-conversion on the first preset frequency band communication signal twice to generate a preset intermediate frequency signal, so as to improve frequency stability.
Alternatively, the first analog-to-digital conversion unit 213 and the second analog-to-digital conversion unit 223 may employ an analog-to-digital converter having a quantization bit number of 4 bits. The Conversion precision is determined by the quantization digit of an analog-to-Digital converter (ADC), and the communication signal of the first preset frequency band is converted into a Digital signal meeting the communication standard requirement by adopting a 4-bit quantized ADC, so that the quantization precision is improved.
Specifically, in the process of receiving a communication signal, the first demodulation unit 214 and the second demodulation unit 224 receive a digital signal that is subjected to filtering, down-conversion and analog-to-digital conversion, perform carrier stripping and text stripping on the digital signal, and implement automatic tracking of an output signal frequency on an input signal frequency by using a phase detection loop and frequency detection loop fusion technology, where the demodulated text information is sent to the corresponding first information cache unit 215 or second information cache unit 225, and the first information cache unit 215 and the second information cache unit 225 are configured to complete caching of the text information, determine the text information according to a preset standard communication protocol, and output the text information meeting the protocol requirements to the signal processing control unit 40.
Optionally, referring to fig. 2 in combination, the dual-channel signal sending module 30 includes a first signal sending module 310 and a second signal sending module 320, where the first signal sending module 310 includes a third filtering unit 311 for implementing signal filtering, a first up-conversion unit 312 for implementing signal up-conversion processing, a first digital-to-analog conversion unit 313 for converting a digital signal into an analog signal, a first modulation unit 314 for implementing signal modulation, and a third information buffer unit 315 for buffering a second preset frequency band communication signal, and data to be sent is gradually transmitted to the third filtering unit 311 by the third information buffer unit 315; the second signal transmitting module 320 includes a fourth filtering unit 321 for implementing signal filtering, a second up-conversion unit 322 for implementing signal up-conversion processing, a second digital-to-analog conversion unit 323 for converting a digital signal into an analog signal, a second modulation unit 324 for implementing signal modulation, and a fourth information buffer unit 325 for buffering a second preset frequency band communication signal, which are connected in sequence, and data to be transmitted is gradually transmitted to the fourth filtering unit 321 by the fourth information buffer unit 325.
In this embodiment, the first signal transmitting module 310 is configured to perform modulation, frequency conversion and filtering processing on data to be transmitted sent through the first antenna unit 101 to obtain a second preset frequency band communication signal, the second signal transmitting module 320 is configured to perform modulation, frequency conversion and filtering processing on data to be transmitted sent through the second antenna unit 102 to obtain a second preset frequency band communication signal, and the first signal transmitting module 310 and the second signal transmitting module 320 may adopt the same circuit structure, which is not limited thereto.
In this embodiment, the up-conversion unit is configured to convert the intermediate frequency modulated signal into a signal in an uplink frequency band of satellite communication, that is, a second predetermined frequency band communication signal.
Alternatively, the first digital-to-analog conversion unit 313 and the second digital-to-analog conversion unit 323 may employ a digital-to-analog converter with a quantization bit number of 4 bits.
Alternatively, the first upconversion unit 312 and the second upconversion unit 322 may include two stages of upconverters connected in series.
Specifically, the operation process will be described by taking the first signal transmitting module 310 as an example, and during the transmission of the communication signal, the signal processing control unit 40 sends the data to be sent to the third information buffer unit 315, the first information buffer unit 215 buffers the data to be sent, and transmits to the corresponding first modulation unit 314, the first modulation unit 314 is configured to modulate the phase of the data to be transmitted according to the preset standard communication protocol, so as to reduce the modulation error, the first digital-to-analog conversion unit 313 performs digital-to-analog conversion on the modulated signal, so as to obtain an intermediate frequency signal, the intermediate frequency signal is up-converted by the first up-conversion unit 312 to obtain a second communication signal of a predetermined frequency band, after the second preset frequency band communication signal is filtered by the third filtering unit 311, the second preset frequency band communication signal is sent to the transmitting port of the first antenna unit 101.
It should be understood that the specific operation process of the second signal transmitting module 320 is the same as that of the first signal transmitting module 310, and is not described herein again.
Optionally, the signal processing control unit 40 is provided with a high-stability crystal oscillator, and the high-stability crystal oscillator is configured to provide a clock signal with high stability to the dual-channel signal receiving module 20 and the dual-channel signal sending module 30, and control the down-conversion unit and the up-conversion unit in the four channels to operate, so as to implement frequency adjustment, facilitate the homology of communication signals, and reduce modulation and demodulation errors.
Example two
The embodiment of the utility model provides a second provides a communication device. Fig. 3 is a schematic structural diagram of a communication device according to a second embodiment of the present invention. As shown in fig. 3, the communication apparatus 100 includes the dual-antenna communication signal processing system 1.
The communication device provided by the embodiment of the utility model is provided with a dual-antenna communication signal processing system, which is provided with a first antenna unit, a second antenna unit, a dual-channel signal receiving module, a dual-channel signal transmitting module and a signal processing control unit, wherein the first antenna unit and the second antenna unit which are fixed towards different directions are used for capturing a first preset frequency band communication signal, the signal processing control unit is used for controlling the dual-channel signal receiving module to filter, frequency convert and demodulate the first preset frequency band communication signal and controlling the dual-channel signal transmitting module to modulate, frequency convert and filter the data to be transmitted to obtain a second preset frequency band communication signal, and the first antenna unit or the second antenna unit is used for transmitting the second preset frequency band communication signal, the satellite signal is captured and the data to be transmitted are transmitted by the antenna units towards different directions, the problem of current aircraft communication system communication stability poor is solved, be favorable to improving the high dynamic adaptability of system, improve communication quality and stability.
EXAMPLE III
The embodiment of the utility model provides an aircraft is provided three. Fig. 4 is a schematic structural diagram of an aircraft provided by a third embodiment of the present invention. As shown in fig. 4, the aircraft 200 includes the above-described dual-antenna communication signal processing system 1.
In this embodiment, the aircraft 200 may be an airship or a drone.
The aircraft provided by the embodiment of the utility model is provided with a dual-antenna communication signal processing system, which is provided with a first antenna unit, a second antenna unit, a dual-channel signal receiving module, a dual-channel signal transmitting module and a signal processing control unit, wherein the first antenna unit and the second antenna unit which are fixed towards different directions are used for capturing a first preset frequency band communication signal, the signal processing control unit is used for controlling the dual-channel signal receiving module to filter, frequency convert and demodulate the first preset frequency band communication signal and controlling the dual-channel signal transmitting module to modulate, frequency convert and filter the data to be transmitted to obtain a second preset frequency band communication signal, and the first antenna unit or the second antenna unit is used for transmitting the second preset frequency band communication signal, the antenna units towards different directions are used for capturing satellite signals and transmitting the data to be transmitted, the problem of current aircraft communication system communication stability poor is solved, be favorable to improving the high dynamic adaptability of system, improve communication quality, improve the operation monitoring effect, improve system stability.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A dual antenna communication signal processing system, comprising: the antenna comprises a first antenna unit, a second antenna unit, a dual-channel signal receiving module, a dual-channel signal sending module and a signal processing control unit, wherein the first antenna unit and the second antenna unit are fixedly oriented to different directions;
the dual-channel signal receiving module is used for receiving a first preset frequency band communication signal captured by the first antenna unit and the second antenna unit, and filtering, frequency converting and demodulating the first preset frequency band communication signal;
the dual-channel signal transmitting module is used for modulating, frequency-converting and filtering data to be transmitted to obtain a second preset frequency band communication signal and transmitting the second preset frequency band communication signal to the first antenna unit or the second antenna unit;
the signal processing control unit is used for providing control signals for the dual-channel signal receiving module and the dual-channel signal sending module, receiving a first preset frequency band communication signal and sending data to be sent to the dual-channel signal sending module.
2. The dual-antenna communication signal processing system according to claim 1, wherein the dual-channel signal receiving module includes a first signal receiving module and a second signal receiving module, the first signal receiving module includes a first filtering unit for filtering a signal, a first down-conversion unit for down-converting the signal, a first analog-to-digital conversion unit for converting an analog signal into a digital signal, a first demodulation unit for demodulating the signal, and a first information buffer unit for buffering a first preset frequency band communication signal, which are connected in sequence, and the first preset frequency band communication signal is gradually transmitted to the first information buffer unit by the first filtering unit;
the second signal receiving module comprises a second filtering unit for realizing signal filtering, a second down-conversion unit for realizing down-conversion processing of signals, a second analog-to-digital conversion unit for converting analog signals into digital signals, a second demodulation unit for realizing signal demodulation and a second information cache unit for caching first preset frequency band communication signals, which are sequentially connected, and the first preset frequency band communication signals are gradually conveyed to the second information cache unit by the second filtering unit along the second signal receiving module.
3. The dual-antenna communication signal processing system of claim 2, wherein the first down-conversion unit comprises two down-converters connected in series, and down-converts the first predetermined frequency band communication signal twice to generate a predetermined intermediate frequency signal; the second down-conversion unit comprises two stages of down-converters connected in series, and down-conversion is performed on the first preset frequency band communication signal twice to generate a preset intermediate frequency signal.
4. The dual-antenna communication signal processing system of claim 2, wherein the first analog-to-digital conversion unit and the second analog-to-digital conversion unit employ analog-to-digital converters with 4 bits of quantization bits.
5. The dual-antenna communication signal processing system according to claim 1, wherein the dual-channel signal transmitting module includes a first signal transmitting module and a second signal transmitting module, the first signal transmitting module includes a third filtering unit for filtering signals, a first up-conversion unit for performing up-conversion processing on the signals, a first digital-to-analog conversion unit for converting digital signals into analog signals, a first modulation unit for performing signal modulation, and a third information buffer unit for buffering second preset frequency band communication signals, which are connected in sequence, and data to be transmitted is gradually transmitted to the third filtering unit by the third information buffer unit;
the second signal transmitting module comprises a fourth filtering unit for realizing signal filtering, a second up-conversion unit for realizing signal up-conversion processing, a second digital-to-analog conversion unit for converting digital signals into analog signals, a second modulation unit for realizing signal modulation and a fourth information cache unit for caching second preset frequency band communication signals, which are connected in sequence, and data to be transmitted are gradually transmitted to the fourth filtering unit by the fourth information cache unit.
6. The dual-antenna communication signal processing system according to any of claims 1-5, wherein the first antenna element is fixed to face in a first direction and the second antenna element is fixed to face in a second direction, the first direction being at a 90 ° angle to the second direction.
7. The dual-antenna communication signal processing system according to any one of claims 1 to 5, wherein the signal processing control unit is provided with a high-stability crystal oscillator for providing a clock signal to the dual-channel signal receiving module and the dual-channel signal transmitting module.
8. The dual-antenna communication signal processing system according to any one of claims 1-5, wherein the first antenna unit includes an S-band sub-antenna unit and an L-band sub-antenna unit, and the second antenna unit includes an S-band sub-antenna unit and an L-band sub-antenna unit, the S-band sub-antenna unit being configured to receive the first preset-band communication signal, and the L-band sub-antenna unit being configured to transmit the second preset-band communication signal.
9. A communications apparatus, comprising: the dual-antenna communication signal processing system of any of claims 1-8.
10. An aircraft, characterized in that it comprises: the dual-antenna communication signal processing system of any of claims 1-8.
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